Slow build gradle in android - build

Question

I checked all of the questions with answers about slow gradle build . (For Example here , here and ...) .but build gradle in my project is too slow . sometimes which building takes about 5-8 minuets , i searched in many sites , and now im tired
Build.gradle :
apply plugin: 'com.android.application'
android {
compileSdkVersion 24
buildToolsVersion '25.0.2'
defaultConfig {
applicationId "..."
minSdkVersion 14
targetSdkVersion 24
versionCode 1
versionName "1.0"
jackOptions {
enabled true
additionalParameters('jack.incremental': 'true')
}
dexOptions {
incremental true
javaMaxHeapSize "4g"
}
}
compileOptions {
incremental true
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:24.2.1'
testCompile 'junit:junit:4.12'
compile files('libs/TelegramNewApiLibrary.jar')
compile files('libs/TelegramNewConvert.jar')
}
repositories {
mavenCentral()
}
build.gradle(Module app):
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.2.3'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
gradle.properties :
org.gradle.jvmargs=-Xmx4g -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
org.gradle.parallel=true
org.gradle.daemon = true
my Anti-Virus is disabled and work offline is enable in project.
System Ram : 4G
System CPU : 3.10 GH
Android Studio Version : 2.2.3
any one can help me ?

Answer 1

Try to update AndroidStudio to 3.0, upgrade gradle gradle:2.2.3 => gradle:3.0.0 and buildtools buildToolsVersion '25.0.2' => buildToolsVersion '26.0.2'

Answer 2

Understand that Gradle Build has nothing to do with your CPU Speed or RAM. The reason why the Build gets slower in your PC is due to your Internet Connection. The build can take nearly ~100 MB approx. of data to complete it's process. Even if your Internet Connection is fast and your connection's PING speed is slow, it takes more time. Thanks for your time.